/* GStreamer * Copyright (C) <1999> Erik Walthinsen * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include /*#define DEBUG_ENABLED */ #include #include #include "qcamip.h" /* elementfactory information */ static GstElementDetails gst_qcamsrc_details = GST_ELEMENT_DETAILS ("QCam Source", "Source/Video", "Read from a QuickCam device", "Wim Taymans "); #define AE_NONE 3 #define DEF_WIDTH 320 #define DEF_HEIGHT 224 #define DEF_BRIGHTNESS 226 #define DEF_WHITEBAL 128 #define DEF_CONTRAST 72 #define DEF_TOP 1 #define DEF_LEFT 14 #define DEF_TRANSFER_SCALE 2 #define DEF_DEPTH 6 #define DEF_PORT 0x378 #define DEF_AUTOEXP AE_NONE static GstStaticPadTemplate gst_qcamsrc_src_factory = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) ); #define GST_TYPE_AUTOEXP_MODE (gst_autoexp_mode_get_type()) static GType gst_autoexp_mode_get_type (void) { static GType autoexp_mode_type = 0; static GEnumValue autoexp_modes[] = { {AE_ALL_AVG, "0", "Average Picture"}, {AE_CTR_AVG, "1", "Average Center"}, {AE_STD_AVG, "2", "Standard Deviation"}, {AE_NONE, "3", "None"}, {0, NULL, NULL}, }; if (!autoexp_mode_type) { autoexp_mode_type = g_enum_register_static ("GstAutoExposureMode", autoexp_modes); } return autoexp_mode_type; } /* QCamSrc signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; enum { ARG_0, ARG_WIDTH, ARG_HEIGHT, ARG_BRIGHTNESS, ARG_WHITEBAL, ARG_CONTRAST, ARG_TOP, ARG_LEFT, ARG_TRANSFER_SCALE, ARG_DEPTH, ARG_PORT, ARG_AUTOEXP }; static void gst_qcamsrc_base_init (gpointer g_class); static void gst_qcamsrc_class_init (GstQCamSrcClass * klass); static void gst_qcamsrc_init (GstQCamSrc * qcamsrc); static void gst_qcamsrc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_qcamsrc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static GstStateChangeReturn gst_qcamsrc_change_state (GstElement * element, GstStateChange transition); static void gst_qcamsrc_close (GstQCamSrc * src); static gboolean gst_qcamsrc_open (GstQCamSrc * src); static GstData *gst_qcamsrc_get (GstPad * pad); static GstElementClass *parent_class = NULL; /*//static guint gst_qcamsrc_signals[LAST_SIGNAL] = { 0 }; */ GType gst_qcamsrc_get_type (void) { static GType qcamsrc_type = 0; if (!qcamsrc_type) { static const GTypeInfo qcamsrc_info = { sizeof (GstQCamSrcClass), gst_qcamsrc_base_init, NULL, (GClassInitFunc) gst_qcamsrc_class_init, NULL, NULL, sizeof (GstQCamSrc), 0, (GInstanceInitFunc) gst_qcamsrc_init, NULL }; qcamsrc_type = g_type_register_static (GST_TYPE_ELEMENT, "GstQCamSrc", &qcamsrc_info, 0); } return qcamsrc_type; } static void gst_qcamsrc_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_qcamsrc_src_factory)); gst_element_class_set_details (element_class, &gst_qcamsrc_details); } static void gst_qcamsrc_class_init (GstQCamSrcClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; parent_class = g_type_class_peek_parent (klass); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH, g_param_spec_int ("width", "width", "width", 0, 320, DEF_WIDTH, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HEIGHT, g_param_spec_int ("height", "height", "height", 0, 240, DEF_HEIGHT, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BRIGHTNESS, g_param_spec_int ("brightness", "brightness", "brightness", 0, 255, DEF_BRIGHTNESS, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WHITEBAL, g_param_spec_int ("whitebal", "whitebal", "whitebal", 0, 255, DEF_WHITEBAL, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CONTRAST, g_param_spec_int ("contrast", "contrast", "contrast", 0, 255, DEF_CONTRAST, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TOP, g_param_spec_int ("top", "top", "top", 0, 240, DEF_TOP, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LEFT, g_param_spec_int ("left", "left", "left", 0, 320, DEF_LEFT, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TRANSFER_SCALE, g_param_spec_int ("transfer_scale", "transfer_scale", "transfer_scale", 1, 4, DEF_TRANSFER_SCALE, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEPTH, g_param_spec_int ("depth", "depth", "depth", 4, 6, DEF_DEPTH, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PORT, g_param_spec_int ("port", "port", "port", 0, G_MAXINT, DEF_PORT, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_AUTOEXP, g_param_spec_enum ("autoexposure", "autoexposure", "autoexposure", GST_TYPE_AUTOEXP_MODE, DEF_AUTOEXP, G_PARAM_READWRITE)); gobject_class->set_property = gst_qcamsrc_set_property; gobject_class->get_property = gst_qcamsrc_get_property; gstelement_class->change_state = gst_qcamsrc_change_state; } static void gst_qcamsrc_init (GstQCamSrc * qcamsrc) { qcamsrc->srcpad = gst_pad_new_from_template (gst_static_pad_template_get (&gst_qcamsrc_src_factory), "src"); gst_element_add_pad (GST_ELEMENT (qcamsrc), qcamsrc->srcpad); gst_pad_set_get_function (qcamsrc->srcpad, gst_qcamsrc_get); /* if the destination cannot say what it wants, we give this */ qcamsrc->qcam = qc_init (); qcamsrc->qcam->port = DEF_PORT; qc_setwidth (qcamsrc->qcam, DEF_WIDTH); qc_setheight (qcamsrc->qcam, DEF_HEIGHT); qc_setbrightness (qcamsrc->qcam, DEF_BRIGHTNESS); qc_setwhitebal (qcamsrc->qcam, DEF_WHITEBAL); qc_setcontrast (qcamsrc->qcam, DEF_CONTRAST); qc_settop (qcamsrc->qcam, DEF_TOP); qc_setleft (qcamsrc->qcam, DEF_LEFT); qc_settransfer_scale (qcamsrc->qcam, DEF_TRANSFER_SCALE); qc_setbitdepth (qcamsrc->qcam, DEF_DEPTH); qcamsrc->autoexposure = DEF_AUTOEXP; if (qcamsrc->autoexposure != AE_NONE) qcip_set_autoexposure_mode (qcamsrc->autoexposure); } static GstData * gst_qcamsrc_get (GstPad * pad) { GstQCamSrc *qcamsrc; GstBuffer *buf; scanbuf *scan; guchar *outdata; gint i, frame, scale, convert; g_return_val_if_fail (pad != NULL, NULL); qcamsrc = GST_QCAMSRC (gst_pad_get_parent (pad)); scale = qc_gettransfer_scale (qcamsrc->qcam); frame = qcamsrc->qcam->width * qcamsrc->qcam->height / (scale * scale); buf = gst_buffer_new (); outdata = GST_BUFFER_DATA (buf) = g_malloc0 ((frame * 3) / 2); GST_BUFFER_SIZE (buf) = (frame * 3) / 2; qc_set (qcamsrc->qcam); if (!GST_PAD_CAPS (pad)) { gst_pad_try_set_caps (pad, gst_caps_new_simple ("video/x-raw-yuv", "format", GST_TYPE_FOURCC, "I420", "width", G_TYPE_INT, qcamsrc->qcam->width / scale, "height", G_TYPE_INT, qcamsrc->qcam->height / scale, "framerate", G_TYPE_DOUBLE, 10., NULL)); } scan = qc_scan (qcamsrc->qcam); /* FIXME, this doesn't seem to work... */ /*fixdark(qcamsrc->qcam, scan); */ if (qcamsrc->autoexposure != AE_NONE) qcip_autoexposure (qcamsrc->qcam, scan); convert = (qcamsrc->qcam->bpp == 4 ? 4 : 2); for (i = frame; i; i--) { outdata[i] = scan[i] << convert; } memset (outdata + frame, 128, frame >> 1); g_free (scan); return GST_DATA (buf); } static void gst_qcamsrc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstQCamSrc *src; g_return_if_fail (GST_IS_QCAMSRC (object)); src = GST_QCAMSRC (object); switch (prop_id) { case ARG_WIDTH: qc_setwidth (src->qcam, g_value_get_int (value)); break; case ARG_HEIGHT: qc_setheight (src->qcam, g_value_get_int (value)); break; case ARG_BRIGHTNESS: qc_setbrightness (src->qcam, g_value_get_int (value)); break; case ARG_WHITEBAL: qc_setwhitebal (src->qcam, g_value_get_int (value)); break; case ARG_CONTRAST: qc_setcontrast (src->qcam, g_value_get_int (value)); break; case ARG_TOP: qc_settop (src->qcam, g_value_get_int (value)); break; case ARG_LEFT: qc_setleft (src->qcam, g_value_get_int (value)); break; case ARG_TRANSFER_SCALE: qc_settransfer_scale (src->qcam, g_value_get_int (value)); break; case ARG_DEPTH: qc_setbitdepth (src->qcam, g_value_get_int (value)); break; case ARG_PORT: src->qcam->port = g_value_get_int (value); break; case ARG_AUTOEXP: src->autoexposure = g_value_get_enum (value); if (src->autoexposure != AE_NONE) qcip_set_autoexposure_mode (src->autoexposure); break; default: break; } } static void gst_qcamsrc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstQCamSrc *src; g_return_if_fail (GST_IS_QCAMSRC (object)); src = GST_QCAMSRC (object); switch (prop_id) { case ARG_WIDTH: g_value_set_int (value, qc_getwidth (src->qcam)); break; case ARG_HEIGHT: g_value_set_int (value, qc_getheight (src->qcam)); break; case ARG_BRIGHTNESS: g_value_set_int (value, qc_getbrightness (src->qcam)); break; case ARG_WHITEBAL: g_value_set_int (value, qc_getwhitebal (src->qcam)); break; case ARG_CONTRAST: g_value_set_int (value, qc_getcontrast (src->qcam)); break; case ARG_TOP: g_value_set_int (value, qc_gettop (src->qcam)); break; case ARG_LEFT: g_value_set_int (value, qc_getleft (src->qcam)); break; case ARG_TRANSFER_SCALE: g_value_set_int (value, qc_gettransfer_scale (src->qcam)); break; case ARG_DEPTH: g_value_set_int (value, qc_getbitdepth (src->qcam)); break; case ARG_PORT: g_value_set_int (value, src->qcam->port); break; case ARG_AUTOEXP: g_value_set_enum (value, src->autoexposure); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static GstStateChangeReturn gst_qcamsrc_change_state (GstElement * element, GstStateChange transition) { g_return_val_if_fail (GST_IS_QCAMSRC (element), FALSE); switch (transition) { case GST_STATE_CHANGE_READY_TO_NULL: if (GST_OBJECT_FLAG_IS_SET (element, GST_QCAMSRC_OPEN)) gst_qcamsrc_close (GST_QCAMSRC (element)); break; case GST_STATE_CHANGE_NULL_TO_READY: if (!GST_OBJECT_FLAG_IS_SET (element, GST_QCAMSRC_OPEN)) { GST_DEBUG ("opening"); if (!gst_qcamsrc_open (GST_QCAMSRC (element))) { GST_DEBUG ("open failed"); return GST_STATE_CHANGE_FAILURE; } } break; default: break; } if (GST_ELEMENT_CLASS (parent_class)->change_state) return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); return GST_STATE_CHANGE_SUCCESS; } static gboolean gst_qcamsrc_open (GstQCamSrc * qcamsrc) { if (qc_open (qcamsrc->qcam)) { GST_ELEMENT_ERROR (qcamsrc, RESOURCE, OPEN_READ, (NULL), ("Failed to open QuickCam")); return FALSE; } GST_OBJECT_FLAG_SET (qcamsrc, GST_QCAMSRC_OPEN); return TRUE; } static void gst_qcamsrc_close (GstQCamSrc * src) { qc_close (src->qcam); GST_OBJECT_FLAG_UNSET (src, GST_QCAMSRC_OPEN); } static gboolean plugin_init (GstPlugin * plugin) { if (!gst_element_register (plugin, "qcamsrc", GST_RANK_NONE, GST_TYPE_QCAMSRC)) return FALSE; return TRUE; } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "qcamsrc", "Read from a QuickCam device", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)